linux/drivers/scsi
Kiran Patil 480584818a [SCSI] libfc: Enhancement to RPORT state machine applicable only for VN2VN mode
Problem: Existing RPORT state machine continues witg FLOGI/PLOGI
process only after it receices beacon from other end. Once claiming
stage is over (either clain notify or clain repose), beacon is sent
and state machine enters into operational mode where it initiates the
rlogin process (FLOGI/PLOGI) to the peer but before this rlogin is
initiated, exitsing implementation checks if it received beacon from
other end, it beacon is not received yet, rlogin process is not
initiated. Other end initiates FLOGI but peer end keeps on rejecting
FLOGI, hence after 3 retries other end deletes associated rport, then
sends a beacon. Once the beacon is received, peer end now initiates
rlogin to the peer end but since associated rport is deleted FLOGI is
neither accepted nor the reject response send out because rport is
deleted. Hence unable to proceed withg FLOGI/PLOGI process and fails
to establish VN2VN connection.

Fix: VN2VN spec is not standard yet but based on exitsing collateral
on T11, it appears that, both end shall send beacon and enter into
'operational mode' without explictly waiting for beacon from other
end. Fix is to allow the RPORT login process as long as respective
RPORT is created (as part of claim notification / claim response) even
though state of RPORT is INIT. Means don't wait for beacon from peer
end, if peer end initiates FLOGI (means peer end exist and
responding).

Notes: This patch is preparing the FCoE stack for target wrt
offload. This is generic patch and harmless even if applied on storage
initiator because 'else if' condition of function 'fcoe_oem_found'
shall evaluate to TRUE only for targets.

Dependencies: None

Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 16:28:33 -05:00
..
aacraid Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
aic7xxx treewide: fix a few typos in comments 2011-05-10 10:16:21 +02:00
aic7xxx_old Fix common misspellings 2011-03-31 11:26:23 -03:00
aic94xx [SCSI] aic94xx: world-writable sysfs update_bios file 2011-05-24 13:08:39 -04:00
arcmsr [SCSI] arcmsr: simplify assumptions in dma_alloc_coherent() 2011-05-01 16:32:23 -05:00
arm Fix common misspellings 2011-03-31 11:26:23 -03:00
be2iscsi [SCSI] iscsi: Use struct scsi_lun in iscsi structs instead of u8[8] 2011-06-29 16:22:13 -05:00
bfa [SCSI] bfa: Update the driver version to 3.0.2.0 2011-06-29 16:04:05 -05:00
bnx2fc [SCSI] bnx2fc: Bumped version to 1.0.2 2011-06-29 11:13:27 -05:00
bnx2i [SCSI] iscsi: Use struct scsi_lun in iscsi structs instead of u8[8] 2011-06-29 16:22:13 -05:00
cxgbi libcxgbi: Use flowi4's saddr in cxgbi_check_route(). 2011-05-03 20:43:40 -07:00
device_handler Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2011-05-20 13:29:52 -07:00
dpt Fix common misspellings 2011-03-31 11:26:23 -03:00
fcoe [SCSI] libfcoe: Remove unnecessary module state checks 2011-05-24 12:37:35 -04:00
fnic [SCSI] fnic: fix incorrect use of SLAB_CACHE_DMA flag 2011-06-29 16:05:41 -05:00
ibmvscsi [SCSI] ibmvscsi: Improve CRQ reset reliability 2011-05-01 12:09:58 -05:00
libfc [SCSI] libfc: Enhancement to RPORT state machine applicable only for VN2VN mode 2011-06-29 16:28:33 -05:00
libsas [SCSI] libsas: Add option for SATA soft reset 2011-05-26 22:49:33 -05:00
lpfc [SCSI] lpfc: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning 2011-06-29 10:40:35 -05:00
megaraid [SCSI] megaraid_sas: Version and Changelog update 2011-05-24 12:36:06 -04:00
mpt2sas [SCSI] mpt2sas: Bump version 09.100.00.00 2011-06-29 16:20:26 -05:00
mvsas [SCSI] mvsas: add support for Task collector mode and fixed relative bugs 2011-05-01 12:08:03 -05:00
osd [SCSI] libosd: osd_req_read_sg, optimize the single entry case 2011-01-24 12:06:31 -06:00
pcmcia Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2011-05-24 13:28:35 -07:00
pm8001 Merge branch 'master' into for-next 2011-04-26 10:22:59 +02:00
qla2xxx Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-05-23 09:12:26 -07:00
qla4xxx Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2011-05-27 19:52:57 -07:00
sym53c8xx_2 Fix common misspellings 2011-03-31 11:26:23 -03:00
.gitignore
3w-9xxx.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
3w-9xxx.h Fix common misspellings 2011-03-31 11:26:23 -03:00
3w-sas.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
3w-sas.h
3w-xxxx.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
3w-xxxx.h Fix common misspellings 2011-03-31 11:26:23 -03:00
53c700_d.h_shipped Fix common misspellings 2011-03-31 11:26:23 -03:00
53c700.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
53c700.h
53c700.scr Fix common misspellings 2011-03-31 11:26:23 -03:00
a100u2w.c Merge branch 'master' into for-next 2010-12-22 18:57:02 +01:00
a100u2w.h
a2091.c m68k/scsi: a2091 - Do not use legacy Scsi_Host.base 2010-05-26 19:51:08 +02:00
a2091.h m68k/scsi: a2091 - Kill a2091_scsiregs typedef 2010-05-26 19:51:07 +02:00
a3000.c m68k/scsi: a3000 - Do not use legacy Scsi_Host.base 2010-05-26 19:51:08 +02:00
a3000.h m68k/scsi: a3000 - Kill a3000_scsiregs typedef 2010-05-26 19:51:07 +02:00
a4000t.c m68k: amiga - A4000T SCSI platform device conversion 2010-05-26 19:51:09 +02:00
advansys.c Fix common misspellings 2011-03-31 11:26:23 -03:00
aha152x.c [SCSI] aha152x: add missing ISA PNP IDs 2011-06-29 15:09:11 -05:00
aha152x.h
aha1542.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
aha1542.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
aha1740.c Fix common misspellings 2011-03-31 11:26:23 -03:00
aha1740.h
aic7xxx_old.c Fix common misspellings 2011-03-31 11:26:23 -03:00
atari_NCR5380.c [SCSI] atari_NCR5380: Provide a dummy NCR5380_exit() 2011-06-29 15:11:21 -05:00
atari_scsi.c [SCSI] atari_NCR5380: Provide a dummy NCR5380_exit() 2011-06-29 15:11:21 -05:00
atari_scsi.h
atp870u.c Fix common misspellings 2011-03-31 11:26:23 -03:00
atp870u.h
BusLogic.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
BusLogic.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
bvme6000_scsi.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ch.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
constants.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-05-23 09:12:26 -07:00
dc395x.c [SCSI] remove cmd->serial_number litter 2011-05-01 10:22:40 -05:00
dc395x.h Fix common misspellings 2011-03-31 11:26:23 -03:00
dmx3191d.c tree-wide: fix misspelling of "definition" in comments 2009-12-04 23:41:47 +01:00
dpt_i2o.c [SCSI] remove cmd->serial_number litter 2011-05-01 10:22:40 -05:00
dpti.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
dtc.c
dtc.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
eata_generic.h
eata_pio.c [SCSI] remove cmd->serial_number litter 2011-05-01 10:22:40 -05:00
eata_pio.h
eata.c [SCSI] remove cmd->serial_number litter 2011-05-01 10:22:40 -05:00
esp_scsi.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-05-23 09:12:26 -07:00
esp_scsi.h
fd_mcs.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
fdomain.c Fix common misspellings 2011-03-31 11:26:23 -03:00
fdomain.h
FlashPoint.c Fix common misspellings 2011-03-31 11:26:23 -03:00
g_NCR5380_mmio.c
g_NCR5380.c Fix common misspellings 2011-03-31 11:26:23 -03:00
g_NCR5380.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
gdth_ioctl.h [SCSI] gdth: Convert to use regular kernel types. 2010-01-18 10:48:16 -06:00
gdth_proc.c [SCSI] gdth: Add missing call to gdth_ioctl_free 2010-12-31 09:50:09 -06:00
gdth_proc.h [SCSI] gdth: Convert to use regular kernel types. 2010-01-18 10:48:16 -06:00
gdth.c [SCSI] gdth: Add missing call to gdth_ioctl_free 2010-12-31 09:50:09 -06:00
gdth.h Fix common misspellings 2011-03-31 11:26:23 -03:00
gvp11.c Fix common misspellings 2011-03-31 11:26:23 -03:00
gvp11.h m68k: amiga - GVP Series II SCSI zorro_driver conversion 2010-05-26 19:51:08 +02:00
hosts.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2010-10-22 19:36:42 -07:00
hpsa_cmd.h [SCSI] hpsa: use new doorbell-bit-5 reset method 2011-05-17 11:07:01 +04:00
hpsa.c [SCSI] hpsa: Change memset using sizeof(ptr) to sizeof(*ptr) 2011-05-17 11:19:27 +04:00
hpsa.h [SCSI] hpsa: do soft reset if hard reset is broken 2011-05-17 11:07:28 +04:00
hptiop.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
hptiop.h
ibmmca.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
imm.c Fix common misspellings 2011-03-31 11:26:23 -03:00
imm.h
in2000.c Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
in2000.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
initio.c Fix common misspellings 2011-03-31 11:26:23 -03:00
initio.h Fix common misspellings 2011-03-31 11:26:23 -03:00
ipr.c [SCSI] ipr: fix possible false positive detection of stuck interrupt 2011-05-24 12:37:50 -04:00
ipr.h [SCSI] ipr: Driver version 2.5.2 2011-05-01 12:10:34 -05:00
ips.c Fix common misspellings 2011-03-31 11:26:23 -03:00
ips.h Fix common misspellings 2011-03-31 11:26:23 -03:00
iscsi_boot_sysfs.c [SCSI] iscsi boot: mv iscsi_boot_sysfs to drivers/scsi 2010-08-06 10:45:07 -05:00
iscsi_tcp.c Fix common misspellings 2011-03-31 11:26:23 -03:00
iscsi_tcp.h [SCSI] iscsi_tcp: use iscsi_conn_get_addr_param libiscsi function 2011-02-24 12:41:10 -05:00
jazz_esp.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
Kconfig [SCSI] bnx2fc: Broadcom FCoE offload driver 2011-02-28 18:40:27 -06:00
lasi700.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
libiscsi_tcp.c [SCSI] libiscsi_tcp: use kmap in xmit path 2011-03-23 11:36:58 -05:00
libiscsi.c [SCSI] iscsi: Use struct scsi_lun in iscsi structs instead of u8[8] 2011-06-29 16:22:13 -05:00
libsrp.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mac53c94.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
mac53c94.h
mac_esp.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mac_scsi.c [SCSI] mac_scsi: Remove unused variable default_instance 2011-06-29 15:12:43 -05:00
mac_scsi.h
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2011-03-17 17:54:40 -07:00
megaraid.c [SCSI] remove cmd->serial_number litter 2011-05-01 10:22:40 -05:00
megaraid.h Fix common misspellings 2011-03-31 11:26:23 -03:00
mesh.c [SCSI] remove cmd->serial_number litter 2011-05-01 10:22:40 -05:00
mesh.h
mvme16x_scsi.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mvme147.c m68k/scsi: mvme147 - Kill obsolete HOSTS_C logic 2010-05-26 19:51:07 +02:00
mvme147.h [SCSI] mvme147: Reindentation 2010-05-02 15:55:03 -04:00
ncr53c8xx.c [SCSI] remove cmd->serial_number litter 2011-05-01 10:22:40 -05:00
ncr53c8xx.h
NCR53c406a.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
NCR5380.c Fix common misspellings 2011-03-31 11:26:23 -03:00
NCR5380.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
NCR_D700.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
NCR_D700.h
NCR_Q720.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
NCR_Q720.h
nsp32_debug.c treewide: fix a few typos in comments 2011-05-10 10:16:21 +02:00
nsp32_io.h
nsp32.c Fix common misspellings 2011-03-31 11:26:23 -03:00
nsp32.h Fix common misspellings 2011-03-31 11:26:23 -03:00
osst_detect.h
osst_options.h
osst.c [SCSI] osst: fix warning 2011-05-24 13:09:41 -04:00
osst.h Fix common misspellings 2011-03-31 11:26:23 -03:00
pas16.c
pas16.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
pmcraid.c Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
pmcraid.h Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
ppa.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
ppa.h
ps3rom.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
qla1280.c [SCSI] remove cmd->serial_number litter 2011-05-01 10:22:40 -05:00
qla1280.h
qlogicfas408.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
qlogicfas408.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
qlogicfas.c
qlogicpti.c drivercore: revert addition of of_match to struct device 2011-05-18 12:32:23 -06:00
qlogicpti.h of/device: Replace struct of_device with struct platform_device 2010-08-06 09:25:50 -06:00
raid_class.c [SCSI] raid_attrs: fix dependency problems 2010-03-03 21:17:06 +05:30
script_asm.pl
scsi_debug.c Fix common misspellings 2011-03-31 11:26:23 -03:00
scsi_devinfo.c [SCSI] Blacklist Traxdata CDR4120 and IOMEGA Zip drive to avoid lock ups. 2011-06-29 15:08:47 -05:00
scsi_error.c [SCSI] Reduce error recovery time by reducing use of TURs 2011-05-24 12:51:53 -04:00
scsi_ioctl.c [SCSI] add scsi target reset support to scsi ioctl 2009-12-04 12:01:33 -06:00
scsi_lib_dma.c [SCSI] scsi_lib_dma: fix bug with dma maps on nested scsi objects 2009-12-04 12:01:30 -06:00
scsi_lib.c Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2011-05-18 06:49:02 -07:00
scsi_logging.h
scsi_module.c
scsi_netlink.c Fix common misspellings 2011-03-31 11:26:23 -03:00
scsi_pm.c [SCSI] implement runtime Power Management 2010-07-28 09:07:50 -05:00
scsi_priv.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2011-03-17 17:54:40 -07:00
scsi_proc.c scsi: fix scsi_proc new kernel-doc warning 2011-05-28 23:12:11 -07:00
scsi_sas_internal.h [SCSI] scsi_transport_sas: add support for transport layer retries (TLR) 2010-02-08 17:15:19 -06:00
scsi_scan.c [SCSI] Fix oops caused by queue refcounting failure 2011-06-02 18:34:43 +09:00
scsi_sysctl.c
scsi_sysfs.c [SCSI] Fix oops caused by queue refcounting failure 2011-06-02 18:34:43 +09:00
scsi_tgt_if.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
scsi_tgt_lib.c [SCSI] esp, scsi_tgt_lib, fcoe: use list_move() instead of list_del()/list_add() combination 2011-05-01 10:20:10 -05:00
scsi_tgt_priv.h
scsi_trace.c [SCSI] scsi_trace: Decode UNMAP bit in WRITE SAME(10) 2011-05-24 12:38:36 -04:00
scsi_transport_api.h
scsi_transport_fc_internal.h
scsi_transport_fc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2011-05-20 13:29:52 -07:00
scsi_transport_iscsi.c [SCSI] scsi_transport_iscsi: make priv_sess file writeable only by root 2011-03-23 11:35:58 -05:00
scsi_transport_sas.c block: remove per-queue plugging 2011-03-10 08:52:07 +01:00
scsi_transport_spi.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
scsi_transport_srp_internal.h
scsi_transport_srp.c
scsi_typedefs.h
scsi_wait_scan.c
scsi.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
scsi.h
scsicam.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sd_dif.c block: Make the integrity mapped property a bio flag 2010-10-15 15:49:20 +02:00
sd.c [SCSI] Retrieve the Caching mode page (version 2) 2011-05-24 12:43:52 -04:00
sd.h [SCSI] sd: Logical Block Provisioning update 2011-03-14 18:37:34 -05:00
ses.c [SCSI] ses: requesting a fault indication 2011-06-29 12:14:25 -05:00
sg.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
sgiwd93.c update David Miller's old email address 2011-04-06 06:19:38 -07:00
sim710.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sni_53c710.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sr_ioctl.c scsi: replace sr_test_unit_ready() with scsi_test_unit_ready() 2010-12-16 17:53:39 +01:00
sr_vendor.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sr.c block: don't block events on excl write for non-optical devices 2011-04-21 20:54:46 +02:00
sr.h sr: implement sr_check_events() 2010-12-16 17:53:39 +01:00
st_options.h
st.c [SCSI] st: Increase success probability in driver buffer allocation 2010-12-22 23:26:50 -06:00
st.h [SCSI] st: fix mdata->page_order handling 2009-12-10 08:54:13 -06:00
stex.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
sun3_NCR5380.c [SCSI] sun3: Remove commented out merge_contiguous_buffers 2011-06-29 15:15:05 -05:00
sun3_scsi_vme.c [SCSI] sun3: Add various missing NDEBUG* definitions 2011-06-29 15:14:54 -05:00
sun3_scsi.c [SCSI] sun3: Add various missing NDEBUG* definitions 2011-06-29 15:14:54 -05:00
sun3_scsi.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
sun3x_esp.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sun_esp.c dt/sparc: Eliminate users of of_platform_{,un}register_driver 2011-02-28 01:36:39 -07:00
sym53c416.c Fix common misspellings 2011-03-31 11:26:23 -03:00
sym53c416.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
t128.c
t128.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
tmscsim.c [SCSI] remove cmd->serial_number litter 2011-05-01 10:22:40 -05:00
tmscsim.h
u14-34f.c [SCSI] remove cmd->serial_number litter 2011-05-01 10:22:40 -05:00
ultrastor.c [SCSI] Fix Ultrastor asm snippet 2011-05-24 13:25:35 -04:00
ultrastor.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
vmw_pvscsi.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
vmw_pvscsi.h
wd33c93.c Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
wd33c93.h SCSI host lock push-down 2010-11-16 13:33:23 -08:00
wd7000.c Fix common misspellings 2011-03-31 11:26:23 -03:00
zalon.c
zorro7xx.c m68k: amiga - Zorro bus modalias support 2010-05-17 21:37:41 +02:00